ลูกคิดคอลัมน์ 13 หลักเครื่องมือคณิตศาสตร์

100% brand new and high quality Features: 13 bamboo rods, with 1 bead above and 4 beads below on each rod. Traditional classic functional arithmetic abacus. Well made plastic frame and beads. A nice tool for kids' early mathematic education. Can be used as classical education tool for teacher or a gift for abacus collectors Abacus Tool only,other accessories demo in the picture is not included. Specification: Material: ABS Dimensions: app.24x6.5cm/9.45x2.56in Beads Color: Brown,White Quantity: 1 Pc Note: No retail package. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Contents: 1 x Abacus Tool